CN105846023A - TE mode medium filter - Google Patents
TE mode medium filter Download PDFInfo
- Publication number
- CN105846023A CN105846023A CN201610224831.6A CN201610224831A CN105846023A CN 105846023 A CN105846023 A CN 105846023A CN 201610224831 A CN201610224831 A CN 201610224831A CN 105846023 A CN105846023 A CN 105846023A
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- China
- Prior art keywords
- resonator
- dielectric
- filter
- wave filter
- cavity
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention finds applications in the technical field of wireless communications and it provides a TE mode medium filter which comprises a housing with a plurality of resonant cavities in the housing and a cover plate cooperative with the housing. The filter further comprises TE mode medium resonators arranged in the resonant cavities and metal resonators in metal resonant cavities. Each TE mode medium resonator comprises a medium resonator arranged at the bottom of its cavity and an adjusting plate arranged on the cover plate. The adjusting plate is provided with adjusting screws through which the gap between the adjusting plate and the medium resonator can be adjusted. The bottom of the medium resonator cavity is provided with a downwardly recessed step. The cross section of the medium resonator cavity is greater than that of a metal resonator cavity. According to the invention, a TE mode medium filter can still be used even with a restricted size in appearance, more particularly in height. The filter is not only convenient to mount but it also provides stable quality and raises the Q value and PIM betterment of a product substantially. Beyond that, material costs and manufacturing technology required of the filter are greatly reduced.
Description
Technical field
The invention belongs to wireless communication field, particularly relate to a kind of TE mould dielectric filter.
Background technology
Wave filter plays an important role in the process of electronic signal, and it has filters use frequency
Signal and the function of suppression interference signal.Along with the fast development of microwave radio commu, miniaturization base station becomes
Main flow, proposes increasingly harsher requirement to the volume of wave filter, and traditional metal coaxial resonator is constituted
Wave filter the most increasingly can not meet requirement.
The wave filter that in industry, the TM mould dielectric resonator of main flow is constituted at present is in actual production and application
There is also various practical difficulty, be not suitable for mass industrialized production.Such as: TM mould dielectric resonator structure
The wave filter become is the most easy to crack, and product rejection rate is high；Its medium resonant rod axial centre perforate,
Resonator q declines, and causes performance boost space to become to be extremely limited；The work frequency of TM dielectric resonator
Rate raises, and its volume diminishes, and frequency tuning screw is intensive with the arrangement of coupling screws, the debugging difficulty of device
Increase；TM mould dielectric resonator uses the mode of axial pressure to fix at present, is difficult to control to during assembling
Tolerance, easily causes broken or forms fit-up gap；TM dielectric resonator is by metallic cavity box and crown cap
And dielectric resonance cylinder composition, owing to the material of crown cap, metallic cavity box and dielectric resonance cylinder has
Different thermal coefficient of expansions, when operating ambient temperature amplitude of variation is bigger or when being in hot conditions, metal
Cavity box, crown cap expansion amplitude triangular with dielectric resonance cylinder is different, dielectric resonance cylinder lower end with
Weld at the bottom of resonator is easy to crack so that whole wave filter damages, cannot normally work.
Therefore, the TE mould dielectric filter of high q-factor is gradually widely used, and TE mould medium is humorous
The structure of device of shaking is different from TM mould dielectric resonator, when wave filter chamber deeply enough time, use TE mould to be situated between
Matter resonator then its assembly technology is simpler than far away TM mould dielectric resonator, does not also have above-mentioned TM mould medium
The variety of problems of resonator, therefore the huge advantage of TE mould dielectric resonator just embodies.
But often there are strict requirements in operator to the size of wave filter, when the overall dimensions of wave filter is subject to
Limit, when particularly the depth dimensions of resonator is the least, often cannot install or debug TE mould dielectric resonance
Device, and TM mould dielectric resonator can only be used.
Summary of the invention
The present invention provides a kind of TE mould dielectric filter, it is intended to solve to work as the overall dimensions of wave filter particularly
When being highly restricted, it is impossible to the problem using TE mould dielectric resonator.
The present invention is achieved in that a kind of TE mould dielectric filter, including:
Shell, is provided with some resonator cavitys in described shell, described resonator cavity includes that dielectric resonant chamber is humorous with metal
Shake chamber；
The cover plate coordinated with described shell；
The TE mould dielectric resonator being located in described dielectric resonant chamber；And
It is located at the metal resonators in described Metal cavity；
Described TE mould dielectric resonator includes being located at the dielectric resonator bottom described dielectric resonant chamber, and sets
Adjustment disk on described cover plate, described adjustment disk is provided with the described adjustment disk of regulation and described dielectric resonator
Between the set screw in gap；
There is bottom described dielectric resonant chamber a recessed step；
The cross sectional dimensions of described dielectric resonant chamber is more than the cross sectional dimensions of described Metal cavity.
Foregoing invention embodiment provides a kind of TE mould dielectric filter, is achieved when filter by said structure
The overall dimensions of ripple device is restricted, when particularly the height dimension of wave filter is the least, it is also possible to use TE
Mode filter, compared to TM mode filter, this programme is the most easy for installation, constant product quality, and
Q-value and the PIM yield of product are also greatly improved, and greatly reduce material cost and manufacturing process cost simultaneously.
Accompanying drawing explanation
Fig. 1 is a part sectioned view of the TE mould dielectric filter that the present invention provides；
Fig. 2 is another part sectioned view of the TE mould dielectric filter that the present invention provides；
Fig. 3 is the overall structure figure of the TE mould dielectric filter that the present invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
The invention provides a kind of TE mould dielectric filter, by the resonance at TE mould dielectric resonator place
Chamber arranges the step of a depression, and reduces the resonator cavity corresponding to metal resonators as far as possible so that TE mould is situated between
The size of the resonator cavity corresponding to matter resonator increases, thus when the overall dimensions of wave filter is restricted, special
Be not the height dimension of wave filter the least time, it is also possible to use TE mould dielectric resonator, instead of tradition
TM mould dielectric resonator, the most easy for installation, constant product quality, and the Q-value of product and PIM
Yield is also greatly improved, and greatly reduces material cost and manufacturing process cost simultaneously.
Shown in Fig. 1, Fig. 2, Fig. 3, the invention provides a kind of TE mould dielectric filter, including:
Shell 1, wherein, is provided with some resonator cavitys 11 in shell 1；The cover plate 2 matched with shell 1；
And the TE mould dielectric resonator 3 being located in resonator cavity 11 and metal resonators 4, wherein, resonator cavity 11
Including the dielectric resonant chamber 111 for installing TE mould dielectric resonator 3, and it is used for metal resonators is installed
The Metal cavity 112 of 4.Wherein, TE mould dielectric resonator 3 includes being located at the medium bottom resonator cavity 11
Resonator 31, and the adjustment disk 32 being located on cover plate 2, adjustment disk 32 is additionally provided with set screw 32, adjusts
Joint screw 321 is for controlling to adjust the gap between dish 32 and dielectric resonator 31.Wherein, dielectric resonance
The bottom in chamber 111 has a recessed step 1111, to improve the actually active height of cut-off resonator cavity 11；
The cross sectional dimensions of dielectric resonant chamber 111, more than the cross sectional dimensions of Metal cavity 112, i.e. reduces metal
The cross sectional dimensions of resonator cavity 112 meets the cross sectional dimensions of dielectric resonant chamber 111.
In an embodiment of the present invention, a length of 400 ± 3mm of a kind of TE mould dielectric filter, width is
300 ± 3mm, height is 35 ± 2mm；And the frequency of this wave filter is 1840 ± 100MHz, point four passages.
Wherein, removing the thickness bottom cover plate 2 and shell 1, limiting altitude H of resonator cavity 11 is 25 ± 2mm.
In one embodiment of the invention, the degree of depth of step 1111 is 0.1mm to 1.5mm, by setting
Put step 1111 so that TE mould dielectric resonator has enough installations or regulation space.
As a preferred embodiment of the present invention, the degree of depth of step 1111 is 1 ± 0.3mm, step 1111
The degree of depth can not be too small or excessive, too small, do not reach due effect, excessive, be easily caused dielectric resonant chamber
The bottom of 111 deforms in forming process, thus scraps, and the degree of depth of step 1111 is 1 ± 0.3mm
Both make TE mould medium sensor 3 have enough installations or regulation space, also can guarantee that dielectric resonance simultaneously
The bottom in chamber 111 has enough rigidity.
Wherein, dielectric resonator 31 by screw or gluing by the way of be fixed on bottom dielectric resonant chamber 111.
In one embodiment of the invention, the height h1 of dielectric resonator 31 is 15 ± 2mm, and medium is humorous
The diameter d1 of device 31 of shaking is 33.2 ± 3mm, and the diameter D1 of dielectric resonant chamber 111 is 39 ± 3mm.This chi
The very little chamber peace of TE mould dielectric resonator 3 when dimension limit 25 ± 2mm deeply that disclosure satisfy that resonator cavity 11
Dress and commissioning requirements.
In one embodiment of the invention, the diameter d2 of metal resonators 4 is 15 ± 3mm, highly h2
It is 20.5 ± 2mm；The diameter D2 of Metal cavity 112 is 29 ± 3mm.When wave filter is by profile chi
During very little restriction, by must be the least by the diameter design of metal resonators 4, thus reserve sufficiently large sky
Between accommodate TE mould dielectric resonator 3 so that wave filter has enough spaces for installing and debug TE mould
Dielectric resonator 3, it is to avoid use the various problems that TM mould dielectric resonator brings.
Foregoing invention embodiment provides a kind of TE mould dielectric filter, including: shell, it is provided with in shell
Some resonator cavitys, resonator cavity includes dielectric resonant chamber and Metal cavity；The cover plate coordinated with shell；It is located at
TE mould dielectric resonator in dielectric resonant chamber；And the metal resonators being located in Metal cavity；TE
Mould dielectric resonator includes the dielectric resonator being located at bottom dielectric resonant chamber, and the adjustment disk being located on cover plate,
Adjustment disk is provided with the set screw in the gap between regulation adjustment disk and dielectric resonator；At the bottom of dielectric resonant chamber
Portion has a recessed step；The cross sectional dimensions of dielectric resonant chamber is more than the cross sectional dimensions of Metal cavity.
Achieve when the overall dimensions of wave filter is restricted by said structure, the particularly height dimension of wave filter
Time the least, it is also possible to using TE mode filter, compared to TM mode filter, this programme is not only installed
Convenient, constant product quality, and also the Q-value of product and PIM yield are also greatly improved, and are substantially reduced simultaneously
Material cost and manufacturing process cost.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (9)
1. a TE mould dielectric filter, including:
Shell, is provided with some resonator cavitys in described shell, described resonator cavity includes that dielectric resonant chamber is humorous with metal
Shake chamber；
The cover plate coordinated with described shell；
The TE mould dielectric resonator being located in described dielectric resonant chamber；And
It is located at the metal resonators in described Metal cavity；
Described TE mould dielectric resonator includes being located at the dielectric resonator bottom described dielectric resonant chamber, and is located at
Adjustment disk on described cover plate, described adjustment disk be provided with control described adjustment disk and described dielectric resonator it
Between the set screw in gap；It is characterized in that,
There is bottom described dielectric resonant chamber a recessed step；
The cross sectional dimensions of described dielectric resonant chamber is more than the cross sectional dimensions of described Metal cavity.
2. wave filter as claimed in claim 1, it is characterised in that a length of 400 ± 3mm of described wave filter,
Width is 300 ± 3mm, and height is 35 ± 2mm；The frequency of described wave filter is 1840 ± 100MHz.
3. wave filter as claimed in claim 1, it is characterised in that the degree of depth of described resonator cavity is 25 ± 2mm.
4. wave filter as claimed in claim 1, it is characterised in that the degree of depth of described step is 0.1mm
To 1.5mm.
5. wave filter as claimed in claim 4, it is characterised in that the degree of depth of described step is 1 ± 0.3mm.
6. wave filter as claimed in claim 1, it is characterised in that described dielectric resonator a diameter of
33.2 ± 3mm, height is 15 ± 2mm.
7. wave filter as claimed in claim 1, it is characterised in that described dielectric resonant chamber a diameter of
39±3mm。
8. wave filter as claimed in claim 1, it is characterised in that described metal resonators a diameter of
15 ± 3mm, height is 20.5 ± 2mm.
9. wave filter as claimed in claim 1, it is characterised in that described Metal cavity a diameter of
29±3mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224831.6A CN105846023A (en) | 2016-04-11 | 2016-04-11 | TE mode medium filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224831.6A CN105846023A (en) | 2016-04-11 | 2016-04-11 | TE mode medium filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105846023A true CN105846023A (en) | 2016-08-10 |
Family
ID=56597207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610224831.6A Pending CN105846023A (en) | 2016-04-11 | 2016-04-11 | TE mode medium filter |
Country Status (1)
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| CN (1) | CN105846023A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143802A (en) * | 1979-04-25 | 1980-11-10 | Mitsubishi Electric Corp | Integrated circuit device for waveguide coupled microwave |
| CN202103148U (en) * | 2011-05-20 | 2012-01-04 | 京信通信***（中国）有限公司 | Coupling structure of dielectric resonator and coaxial cavity resonator |
| CN102544648A (en) * | 2011-12-29 | 2012-07-04 | 华为技术有限公司 | Dielectric filter and multiplexer |
| CN102751554A (en) * | 2012-06-29 | 2012-10-24 | 摩比天线技术（深圳）有限公司 | Mixed-mode filter |
| CN103151586A (en) * | 2013-02-01 | 2013-06-12 | 华为技术有限公司 | Coupling device of metal coaxial cavity and medium resonant cavity and filter |
| CN104900952A (en) * | 2015-06-23 | 2015-09-09 | 武汉凡谷陶瓷材料有限公司 | Coupling structure of dual-mode medium resonator and metal resonator |
| CN205069822U (en) * | 2015-09-30 | 2016-03-02 | 李登峰 | Novel dielectric filter |
| CN205583106U (en) * | 2016-04-11 | 2016-09-14 | 宁波华瓷通信技术有限公司 | TE mould dielectric filter |
-
2016
- 2016-04-11 CN CN201610224831.6A patent/CN105846023A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143802A (en) * | 1979-04-25 | 1980-11-10 | Mitsubishi Electric Corp | Integrated circuit device for waveguide coupled microwave |
| CN202103148U (en) * | 2011-05-20 | 2012-01-04 | 京信通信***（中国）有限公司 | Coupling structure of dielectric resonator and coaxial cavity resonator |
| CN102544648A (en) * | 2011-12-29 | 2012-07-04 | 华为技术有限公司 | Dielectric filter and multiplexer |
| CN102751554A (en) * | 2012-06-29 | 2012-10-24 | 摩比天线技术（深圳）有限公司 | Mixed-mode filter |
| CN103151586A (en) * | 2013-02-01 | 2013-06-12 | 华为技术有限公司 | Coupling device of metal coaxial cavity and medium resonant cavity and filter |
| CN104900952A (en) * | 2015-06-23 | 2015-09-09 | 武汉凡谷陶瓷材料有限公司 | Coupling structure of dual-mode medium resonator and metal resonator |
| CN205069822U (en) * | 2015-09-30 | 2016-03-02 | 李登峰 | Novel dielectric filter |
| CN205583106U (en) * | 2016-04-11 | 2016-09-14 | 宁波华瓷通信技术有限公司 | TE mould dielectric filter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |